﻿<!DOCTYPE html>
<html>
<head>
  <title>Spiral Layout</title>
  <!-- Copyright 1998-2021 by Northwoods Software Corporation. -->
  <meta name="description" content="TypeScript: A custom layout that arranges a chain of nodes in a spiral manner." />
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <script src="../assets/js/goSamples.js"></script> <!-- this is only for the GoJS Samples framework -->
</head>
<body>
  <div id="sample">
    <div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:700px; min-width: 200px"></div>
    <p>
      This sample demonstrates a custom Layout, SpiralLayout, which assumes the graph consists of a chain of nodes. The layout
      is defined in its own file, as <a href="SpiralLayout.ts">SpiralLayout.ts</a>.
    </p>
  </div>
  <script type="module" id="code">
    import * as go from "../release/go-module.js";
    import { SpiralLayout } from './SpiralLayout.js';

    if (window.goSamples) goSamples(); // init for the samples -- you don't need to call this
    const $ = go.GraphObject.make;

    const myDiagram = $(go.Diagram, 'myDiagramDiv', // create a Diagram for the DIV HTML element
    {
        initialAutoScale: go.Diagram.Uniform,
        isTreePathToChildren: false,
        layout: $(SpiralLayout) // defined in SpiralLayout.js
    });
    myDiagram.nodeTemplate =
      $(go.Node, go.Panel.Auto,
        { locationSpot: go.Spot.Center },
        $(go.Shape,
          { figure: 'Circle', fill: 'white' },
          new go.Binding('fill', 'color')),
        $(go.TextBlock,
          { margin: 4 },
          new go.Binding('text', 'key'))
      );

    myDiagram.linkTemplate =
      $(go.Link,
        { curve: go.Link.Bezier, curviness: 10 },
        $(go.Shape),
        $(go.Shape, { toArrow: 'Standard' })
      );

    const model = new go.TreeModel();
    model.nodeParentKeyProperty = 'next';
    model.nodeDataArray = [
        { key: 'Alpha', next: 'Beta', color: 'coral' },
        { key: 'Beta', next: 'Gamma', color: 'tomato' },
        { key: 'Gamma', next: 'Delta', color: 'goldenrod' },
        { key: 'Delta', next: 'Epsilon', color: 'orange' },
        { key: 'Epsilon', next: 'Zeta', color: 'coral' },
        { key: 'Zeta', next: 'Eta', color: 'tomato' },
        { key: 'Eta', next: 'Theta', color: 'goldenrod' },
        { key: 'Theta', next: 'Iota', color: 'orange' },
        { key: 'Iota', next: 'Kappa', color: 'coral' },
        { key: 'Kappa', next: 'Lambda', color: 'tomato' },
        { key: 'Lambda', next: 'Mu', color: 'goldenrod' },
        { key: 'Mu', next: 'Nu', color: 'orange' },
        { key: 'Nu', next: 'Xi', color: 'coral' },
        { key: 'Xi', next: 'Omicron', color: 'tomato' },
        { key: 'Omicron', next: 'Pi', color: 'goldenrod' },
        { key: 'Pi', next: 'Rho', color: 'orange' },
        { key: 'Rho', next: 'Sigma', color: 'coral' },
        { key: 'Sigma', next: 'Tau', color: 'tomato' },
        { key: 'Tau', next: 'Upsilon', color: 'goldenrod' },
        { key: 'Upsilon', next: 'Phi', color: 'orange' },
        { key: 'Phi', next: 'Chi', color: 'coral' },
        { key: 'Chi', next: 'Psi', color: 'tomato' },
        { key: 'Psi', next: 'Omega', color: 'goldenrod' },
        { key: 'Omega', next: 'Alpha2', color: 'orange' },
        { key: 'Alpha2', next: 'Beta2', color: 'coral' },
        { key: 'Beta2', next: 'Gamma2', color: 'tomato' },
        { key: 'Gamma2', next: 'Delta2', color: 'goldenrod' },
        { key: 'Delta2', next: 'Epsilon2', color: 'orange' },
        { key: 'Epsilon2', next: 'Zeta2', color: 'coral' },
        { key: 'Zeta2', next: 'Eta2', color: 'tomato' },
        { key: 'Eta2', next: 'Theta2', color: 'goldenrod' },
        { key: 'Theta2', next: 'Iota2', color: 'orange' },
        { key: 'Iota2', next: 'Kappa2', color: 'coral' },
        { key: 'Kappa2', next: 'Lambda2', color: 'tomato' },
        { key: 'Lambda2', next: 'Mu2', color: 'goldenrod' },
        { key: 'Mu2', next: 'Nu2', color: 'orange' },
        { key: 'Nu2', next: 'Xi2', color: 'coral' },
        { key: 'Xi2', next: 'Omicron2', color: 'tomato' },
        { key: 'Omicron2', next: 'Pi2', color: 'goldenrod' },
        { key: 'Pi2', next: 'Rho2', color: 'orange' },
        { key: 'Rho2', next: 'Sigma2', color: 'coral' },
        { key: 'Sigma2', next: 'Tau2', color: 'tomato' },
        { key: 'Tau2', next: 'Upsilon2', color: 'goldenrod' },
        { key: 'Upsilon2', next: 'Phi2', color: 'orange' },
        { key: 'Phi2', next: 'Chi2', color: 'coral' },
        { key: 'Chi2', next: 'Psi2', color: 'tomato' },
        { key: 'Psi2', next: 'Omega2', color: 'goldenrod' },
        { key: 'Omega2', color: 'orange' }
    ];
    myDiagram.model = model;

    window.myDiagram = myDiagram; // Attach to the window for console debugging
  </script>
</body>
</html>